There are many types of special paper, and the design effects are also different. This article only introduces the application of several commonly used special paper.
1. Sulphuric acid paper. Sulphuric acid paper is a kind of modified processed paper that changes the original properties of thick paper made from plant fibers by sulfuric acid treatment. It is translucent, with fewer pores in the paper, and the paper is tough and tight, and it can be waxed, coated, embossed or wrinkled.
Because it is translucent paper, in modern design, sulfuric acid paper is often used as a ring liner or liner for books. This can better highlight and highlight the theme, and it is in line with modern trends. Sometimes used as the title page of a book or picture book. Sulfuric acid paper printing gold, silver or printing graphic printing, unique, more typically for high-grade pictures.
3. Embossed paper
(1) The characteristics of embossed paper adopt the method of mechanical embossing or crepe paper to form a concave and convex pattern on the surface of paper or cardboard. Embossed paper improves its decorative effect by embossing, making the paper more textured. In recent years, embossing on the surface of printing paper has become more and more common. Color dyed paper such as offset paper, coated paper, whiteboard paper, white card paper, etc. is embossed (grained) before printing. Increasing the grade of paper also brings higher added value to paper sales. Many papers used for flexible packaging often use embossing methods before or after printing to improve the visual effects of packaging and decoration and increase the value of the goods. Therefore, embossing has become an important method of paper processing.
(2) Processing methods of embossed paper There are two methods of processing embossed paper. First, after the paper is produced, the pattern is added mechanically to become embossed paper; second, after the flat base paper is dried, it is put into the embossing machine for further processing, and then pressed by two rollers, one of which is With embossed patterns, the paper will be embossed into patterns after passing through. Because the texture of embossed paper is deep, usually only one side of the paper is embossed.
(3) Types of embossing Embossing can be divided into two types: embossing with plate and embossing without plate. The so-called set embossing is to press the printed flower shape and press the printed flower shape into a concave-convex shape to make the pattern bulge, which can play the role of beautiful decoration. Non-plate embossing means that the embossed pattern has no direct relationship with the printed pattern. There are many types of embossed patterns. Such as cloth pattern, diagonal cloth pattern, straight stripe, Yalian net, orange skin pattern, straight net pattern, needle net pattern, egg skin pattern, sack pattern, plaid pattern, leather pattern, scalp pattern, linen pattern, gear stripe, etc. This non-overprint embossing is widely used in embossed printing paper, coated book cover paper, patent cover paper, plastic synthetic paper, plant parchment paper and other decorative materials. Most of the domestic embossed paper is made of offset paper and whiteboard paper. The surface is rough, textured, expressive, and diverse. Many art designers prefer to use this kind of paper, and use it to make covers or title pages of books or albums to express different personalities.
4. Pattern paper designers and printers are constantly seeking unique design styles to make their works stand out. Many times pattern paper can make them icing on the cake. This type of high-quality paper products has a soft touch, a gorgeous appearance, and the finished product is more noble and pleasing. There are many varieties of pattern paper, each with its own characteristics, which is higher than ordinary paper. Pattern paper can be divided into the following types:
(1) Dip net paper copy net is the most traditional and commonly used method to make paper texture. This process is generally inserted in the papermaking process. The wet paper is placed between two absorbent soft flannels, and the line texture of the flannel will be printed on the paper. This process is divided into single-sided or double-sided printing. The lines and patterns of the screen paper such as gangue stripe paper are looming and soft in texture. Some imported screen papers contain cotton, so the texture is softer and natural and the toughness is full, suitable for packaging and printing .
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